单词 | SAN (Storage Area Network) |
释义 | SAN (Storage Area Network) A high-speed, special purpose, dedicated network that supports com- munications between computers and storage servers in support of data-intensive applications such as inventory management, credit and billing management, receivables management, customer relationship management, and supply chain management.A SAN is much more complex than simple network-attached storage (NAS) and provides application users with much faster access to databases, SANs also provide for centralized management of critical data, including accessibility, security, and backup. SAN protocols include 100Base-T, Gigabit Ethernet (GigE and 10GigE), asynchronous transfer mode (ATM), IBM’s Enterprise Systems Connectivity (ESCON) and Fibre Connection (FICON), several versions of Fibre Channel (FC), Serial Storage Architecture (SSA), Small Computer Systems Interface (SCSI) and Internet Small Computer Systems Interface (iSCSI). The storage technologies include Just a Bunch Of Disks (JBOD), Redundant Array of Inexpensive Disks (RAID), a cluster of servers on a network, or a more complex and expensive host storage server such as mainframe computer storage. SAN applications include disk mirroring, data backup and restoration, data archival and retrieval, data transfer between storage devices, and data sharing between servers. See also 10 GigE, 100Base-T, ATM, ESCON, Fibre Channel, FICON, GigE, iSCSI, JBOD, LAN, NAS, RAID, SCSI, server, and SSA. |
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